(19)

(11)

EP 1 350 331 A2

(12)

(88) Date of publication A3: 06.03.2003 (43) Date of publication: 08.10.2003 Bulletin 2003/41 (21) Application number: 02709016.6 (22) Date of filing: 10.01.2002

(51) International Patent Classification (IPC)7: H04B 1/28, H04B 1/40, H04B 15/04 (86) International application number: PCT/US0200/895 (87) International publication number: WO 0205/6488 (18.07.2002 Gazette 2002/29)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 12.01.2001 US 261506 P 02.03.2001 US 273119 P 29.03.2001 US 821342 29.03.2001 US 821340 (71) Applicant: Silicon Laboratories, Inc. Austin, TX 78735 (US)	(72) Inventors: VISHAKHADATTA, G., Diwakar Austin, TX 78731 (US) SCOTT, Jeffrey, W. Austin, TX 78739 (US) TUTTLE, G., Tyson Austin, TX 78751 (US) SRINIVASAN, Vishnu, Shankar Austin, TX 78735 (US) RAFI, Aslamali, A. Austin, TX 78735 (US) (74) Representative: Winkler, Andreas, Dr.  FORRESTER & BOEHMERTPettenkoferstrasse 20-22 80336 München 80336 München (DE)